Whiffletree-hook



JJ 3.. DAVIS. WHIFFLETREE HOOK.

Patented Jan. 23, 1894.

(No Model.)

UNITED STATES PATENT FFICE.

JOHN R. DAVIS, OF RAOINE, WISCONSIN.

WHlFFLETREE-HOOK.

SPECIFICATION forming part of 1 Letters Patent No, 513,309, datedJanuary 23, 1894.

Application filed May 1, 1893.

To aZZ whom it may concern:

Be it known that I, JOHN R. DAVIS, of Racine, in the county of Racineand State of Wisconsin, have invented certain new and usefulImprovements in Whiffietree-Hooks; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, which forni a part of this specification.

This invention relates to whiffletree-hooks and is an improvement on theconstruction shown in Letters Patent No. 428,896, granted to me May 27,1890.

The primary object of my invention is to provide a construction of theferrule by which the trace-hook will be held in its proper place thereonwithout aid from the pins used to hold the ferrule upon the whifiietree,which pins, in my said prior patent, were made to project beyond theperipheral surface of the ferrule for this purpose. that priorconstruction that these pins, by reason of their projection, becameloose and dropped out, thus allowing the hook to slip back upon the woodand also allowing the forrule to come off the Whittle-tree.

For the remedy of this fault the present invention consists in theprovision of a projection on the ferrule and integral therewith at thepoint where one of said projecting pins was previously placed, and in acertain forma tion of the eye of the trace-hook such that it may bereadily applied to the ferrule, having such added projection, before theferrule is attached to the whiftletree.

Referring to the accompanying drawings in illustration of my invention,Figure 1 is a perspective view of theferrule detached. Fig. 2 is aninner end View of the ferrule, showing the trace-hook in the position towhich it is brought in being applied to the ferrule before theapplication of the latter to the whiflietree. Fig. 3 is a side elevationof the ferrule, showing the trace-hook by dotted lines and in centralsection through the eye, said hook being in the inclined position towhich it is brought in applying it to the improved ferrule. Fig. t is anaxial section through the ferrule ap- It was a fault of.

Serial No, 472,527. (No model.)

plied to the whiffletree, showing the tracehook in section upon theferrule and in position to receive the cock-eye of a trace.

A designates a metal ferrule of generally cylindric or slightly conicalform, which is to be applied firmly around the end of a whiffletree B.The outer end of the ferrule is cut away obliquely at one side, as seenat a in Figs. 1, 3 and 4, and the Wood of the whiffletree iscorrespondingly cut away or recessed as shown at b in Fig. 4, thecoinciding recesses of the whiftletree and ferrule being at the upperside of said Whiffletree.

The ferrule A is of cast metal, and upon its outer surface and near itsinner end is cast a lug a situated at a point opposite the middle of therecess a. At a point about ninety degrees forwardly from the lug a andin the same circumferential line therewith is also cast the auxiliaryluga which may be similar in form to the lug a. Upon the periphery of theferrule and in or near the circumferential line of the upper orinnermost point of the recess a and in the position of thecircumferential rib O of my said prior patent, are cast a series of lugsor circumferentially directed ribs, here shown as being four in numberand lettered a a a and a. Having reference to the lengthwise draft ofthe pattern for this cast ferrule from the sand, spaces between theseribs are provided opposite the lugs a and a and except for this purposeor for the purpose of lightness, the said ribs may be extended intoconnection with each other. They may also, if desired,be a series ofprojecting points or may have any other suitable form and number toprevent the outward displacement of the trace-hook, when present uponthe ferrule.

In order to apply the trace-hook to the ferrule having the fixed lugs a,and a said hook is constructed-with a notch c in its inner pe riphery,adapted to pass freely over the lug a, and the interior diameter of thetrace-hook is made somewhat larger than the diameter of the inner end ofthe ferrule. structed the trace-hook is brought to the positionindicated in Figs. 2 and 3 with one side beneath the lug a and the notchc coincident with the lug a. In this position of the notch c withreference to the said lug a the opposite side of theitrace-hook may bedropped down over the inner end of the ferrule,-the lug a passingthrough the notch 0. After the ferrule has been applied to thewhiffletree the trace-hook cannot be removed from the ferrule and it hasonly thedesired rota'tive move= ment about the ferrule with its eyeconfined between the lugs a, a on the one side and the outer ribs orprojections on the other. If the point of the book 0 be long enough, asit should be, to reach inward past the end of the ferrule, when inproper place thereon, as indicated in Fig. 4, then the notchc in the eyeof the trace-hook should be made at the base of the hook, as indicatedin Fig. 2'.

As a further improvementand for the reason that, in practice, theferrule at its inner end is thin, I provide the outer end of the ferruler with the inwardly directed flange A which strikesagainst thewoodiofthe whifiietree at its end and effectually limits the inward movementofthe ferrule upon the whiffletree in its application thereto. The ferrule'thus constructed maybe securedzupon the 25 Whiffletree by one or moreholding pins or screws let in to their full length and, therefore, notsubject to be loosened by reason of their projection, as in theconstruction upon diameter adapting it to be applied to the ferrule in atilted position, substantially as and for the purpose. set forth.

In testimony that I claim the: foregoing as my invention I affix mysignaturein presence of two witnesses. v

JOHN R. DAVIS.

WVitnesses:

F. E. BABE, MAX W. HEoK.

